Works in Ubuntu 18.04 LTS but not in 19.04. I installed the "chrome-gnome-shell" native host connector but upon trying to install it tells me that the download is corrupt. Please update this pronto for Firefox, as I do not want to have to use Chrome/Chromium to get extensions!

The sister extension ( https://chrome.google.com/webstore/detail/gnome-shell-integration/gphhapmejobijbbhgpjhcjognlahblep?hl=en also version 10.1) works fine under the official Chromium build 73.0.3683.86.